The IPA’s plans to improve the quality of government’s cost estimates of major projects have taken too long to implement. We have examined many projects Delivering value from government investment in major projects 7 where early cost estimates have proved to bear little resemblance to what a project will ultimately cost, and there is optimism bias in nearly every project we look at. Funding packages are often agreed, and projects approved before projects have reached sufficient maturity. High...

The IPA’s plans to improve the quality of government’s cost estimates of major projects have taken too long to implement. We have examined many projects Delivering value from government investment in major projects 7 where early cost estimates have proved to bear little resemblance to what a project will ultimately cost, and there is optimism bias in nearly every project we look at. Funding packages are often agreed, and projects approved before projects have reached sufficient maturity. High Speed 2 is a prime example of a budget being set well before plans were sufficiently mature. The IPA says that departments should be using ranges of pot Type: conclusion | Number: 5 | Response status: accepted Government response: The government agrees with the Committee’s recommendation. deadline will be missed. The Annual Report and Accounts production and audit are currently progressing well and are on target for a September publication. Treasury Minutes Archive1 Treasury Minutes are the gove